
	/**
	 * Demonstrating process creation in Java.
	 *
	 * Figure 3.13
	 *
	 * @author Gagne, Galvin, Silberschatz
	 * Operating System Concepts with Java - Eighth Edition
	 * Copyright John Wiley & Sons - 2010.
	 */

	import java.io.*;

	public class OSProcess
	{
		public static void main(String[] args) throws IOException {
			if (args.length != 1) {
				System.err.println("Usage: java OSProcess <command>");
				System.exit(0);
			}

			// args[0] is the command
			ProcessBuilder pb = new ProcessBuilder(args[0]);
			Process process = pb.start();	

			// obtain the input and output streams
			InputStream is = process.getInputStream();
			InputStreamReader isr = new InputStreamReader(is);
			BufferedReader br = new BufferedReader(isr);

			String line;
			while ( (line = br.readLine()) != null)
				System.out.println(line);

			br.close();
		}
	}


